To determine if 1263 is a prime number or a composite number, we simply look at the factors for 1263.
If the factors of 1263 are only 1263 and 1, then we know that 1263 is a prime number. Otherwise, 1263 is a composite number.
To explain better, if 1263 is only divisible by 1 and 1263, then it is a prime number, and if 1263 is divisible by more than 1263 and 1, then it is a composite number.
The factors of 1263 are as follows:
1, 3, 421, 1263
Therefore, since 1263 is divisible by more than one and itself, the answer to the
question "Is 1263 prime or composite?" is highlighted in blue below.
composite
Is 1264 prime or composite?
OK. Now you know that 1263 is a composite number. Use our logic above and see if
you can figure out if the next number on our list is prime or composite before you check your answer.
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